Monthly outlook for Prospect Hill, NY: average high 75.7°, average low 56.6°. That is 2.5° below the climate normal for August. Precipitation is expected on 6 days (about 1.7 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 11 August (85°), the coolest 22 August (46.6°).
75.7°/56.6°
Average high / low
−2.5°
Below normal
6 / 5
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
78.1°
80.9°
-1.6°
18 August – 27 August
71.7°
79.3°
-4.2°
28 August – 6 September
at normal
77.9°
—
August records over 66 years
98.1°9 August 2001All-time high
46.4°29 August 1982All-time low
Climate normals and records are computed from the nearest reference point — Milford (13 mi).
Sun, 0981° / 66°0
81 °
Prospect Hill, Sunday, 9 August
Clear. High 81°, low 66°.
Pressure30.00 inHg
Wind8.2 mph NW
Humidity45%
Visibility6.2 mi
Dew point61°
Mon, 1084° / 63°0
84 °
Prospect Hill, Monday, 10 August
Overcast. High 84°, low 63°.
Pressure29.97 inHg
Wind7.9 mph W
Humidity46%
Visibility6.2 mi
Dew point61°
Tue, 1185° / 65°0
85 °
Prospect Hill, Tuesday, 11 August
Overcast. High 85°, low 65°.
Pressure29.88 inHg
Wind10.4 mph NW
Humidity40%
Visibility6.2 mi
Dew point55°
Wed, 1275° / 63°0.3
75 °
Prospect Hill, Wednesday, 12 August
Rain. High 75°, low 63°.
Pressure29.74 inHg
Wind3 mph NE
Humidity78%
Visibility6.2 mi
Dew point64°
Thu, 1377° / 52°0.02
77 °
Prospect Hill, Thursday, 13 August
Light rain. High 77°, low 52°.
Pressure29.77 inHg
Wind11.6 mph NW
Humidity38%
Visibility—
Dew point47°
Fri, 1472° / 48°0
72 °
Prospect Hill, Friday, 14 August
Clear. High 72°, low 48°.
Pressure30.00 inHg
Wind10.8 mph NW
Humidity37%
Visibility—
Dew point42°
Sat, 1574° / 49°0
74 °
Prospect Hill, Saturday, 15 August
Clear. High 74°, low 49°.
Pressure30.12 inHg
Wind12.7 mph NW
Humidity39%
Visibility—
Dew point46°
Sun, 1675° / 49°0
75 °
Prospect Hill, Sunday, 16 August
Mostly clear. High 75°, low 49°.
Pressure30.15 inHg
Wind6.5 mph NW
Humidity31%
Visibility—
Dew point40°
Mon, 1775° / 52°0.21
75 °
Prospect Hill, Monday, 17 August
Light rain. High 75°, low 52°.
Pressure30.12 inHg
Wind7.8 mph S
Humidity54%
Visibility—
Dew point55°
Tue, 1866° / 62°0.08
66 °
Prospect Hill, Tuesday, 18 August
Light rain. High 66°, low 62°.
Pressure30.09 inHg
Wind7.4 mph SW
Humidity78%
Visibility—
Dew point59°
Wed, 1973° / 61°0.13
73 °
Prospect Hill, Wednesday, 19 August
Light rain. High 73°, low 61°.
Pressure29.94 inHg
Wind8.7 mph S
Humidity78%
Visibility—
Dew point61°
Thu, 2072° / 59°0.84
72 °
Prospect Hill, Thursday, 20 August
Heavy rain. High 72°, low 59°.
Pressure29.62 inHg
Wind13.9 mph NW
Humidity61%
Visibility—
Dew point56°
Fri, 2171° / 51°0
71 °
Prospect Hill, Friday, 21 August
Mostly clear. High 71°, low 51°.
Pressure29.83 inHg
Wind15.2 mph NW
Humidity44%
Visibility—
Dew point46°
Sat, 2274° / 47°0
74 °
Prospect Hill, Saturday, 22 August
Clear. High 74°, low 47°.
Pressure30.03 inHg
Wind8.9 mph NW
Humidity30%
Visibility—
Dew point37°
Sun, 2374° / 52°0.03
74 °
Prospect Hill, Sunday, 23 August
Light rain. High 74°, low 52°.
Pressure30.00 inHg
Wind11.8 mph S
Humidity67%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2479° / 62°0.06
79 °
Prospect Hill, Monday, 24 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.06 in
Chance of precipitation25%
Record high92° (1998)
Record low50° (1971)
Tue, 2580° / 62°0.09
80 °
Prospect Hill, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.09 in
Chance of precipitation25%
Record high92° (2007)
Record low51° (1987)
Wed, 2680° / 62°0.07
80 °
Prospect Hill, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.07 in
Chance of precipitation27%
Record high92° (1993)
Record low52° (1989)
Thu, 2780° / 64°0.2
80 °
Prospect Hill, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.2 in
Chance of precipitation37%
Record high93° (1993)
Record low53° (1969)
Fri, 2880° / 64°0.23
80 °
Prospect Hill, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.23 in
Chance of precipitation37%
Record high92° (1973)
Record low51° (2025)
Sat, 2979° / 64°0.14
79 °
Prospect Hill, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.14 in
Chance of precipitation35%
Record high90° (1973)
Record low46° (1982)
Sun, 3079° / 63°0.06
79 °
Prospect Hill, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.06 in
Chance of precipitation22%
Record high92° (1991)
Record low47° (1986)
Mon, 3178° / 62°0.06
78 °
Prospect Hill, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.06 in
Chance of precipitation23%
Record high92° (2012)
Record low48° (1965)
Tue, 0177° / 61°0.14
77 °
Prospect Hill, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.14 in
Chance of precipitation30%
Record high91° (2010)
Record low49° (1967)
Wed, 0277° / 61°0.12
77 °
Prospect Hill, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.12 in
Chance of precipitation33%
Record high94° (2010)
Record low47° (2017)
Thu, 0378° / 61°0.14
78 °
Prospect Hill, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.14 in
Chance of precipitation32%
Record high92° (2015)
Record low49° (1967)
Fri, 0478° / 62°0.14
78 °
Prospect Hill, Friday, 4 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.14 in
Chance of precipitation30%
Record high91° (2008)
Record low49° (1997)
Sat, 0577° / 61°0.08
77 °
Prospect Hill, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.08 in
Chance of precipitation30%
Record high90° (2023)
Record low50° (1974)
Sun, 0676° / 61°0.21
76 °
Prospect Hill, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.21 in
Chance of precipitation32%
Record high91° (2023)
Record low48° (2000)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Prospect Hill, NY are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Prospect Hill, NY since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.